Joppa Jow Share definition Flag A phrase yelled generally when drinking. Has no meaning but pisses people of when yelled unexpectedly, especially when yelled above them while they are asleep. Man I drank way to much... JOPPA JOW fuckers! Joppa Jow by KSanders September 21, 2005 0 0 Get merch Get the Joppa Jow mug. Buy Now — $32.95 See more merch